Epidemiological studies of the health effects of living near a phone mast are relevant to an understanding of the possible health effects of wi-fi in school because
• wi-fi also uses microwave radiation, and at a similar frequency and modulation
• the exposure levels from phone masts are equivalent to or lower than those for wi-fi
• children are likely to be more vulnerable to microwave radiation than adults, and
• in children, any health effect has almost a lifetime to develop.
The last point relates especially to cancer and brain or neurological damage.
The epidemiological evidence appears to be strongest in relation to cancer induction and behavioural and functional degradation. It is also notable that in both cases researchers have found indications that women are more vulnerable to microwave radiation than men. This has especial relevance for a school staff that is made up largely of women.
The likelihood that children are more vulnerable than adults to microwave radiation has particular relevance for women who are pregnant.
The biological evidence, which appears strongest in relation to cancer induction and brain damage, also applies at levels of exposure equivalent to that of wi-fi.
The above account of the possible health effects of microwave exposure is not comprehensive. But it seems to me more than enough to stress the seriousness of a decision on whether to use wi-fi.